Deed of Assignment vs. Deed of Lease vs. Deed of Sublease: Key Differences Explained
Introduction
In Nigerian urban property practice—especially in Lagos and adjoining corridors—three instruments dominate most sophisticated transactions: the Deed of Assignment, the Deed of Lease, and the Deed of Sublease. They are cousins, not twins. Each conveys a different legal estate, attracts different consents and risk profiles, and supports different commercial outcomes. Confusing them is expensive: you could pay for “ownership” but receive only a time-bound tenancy; or you might sign a “lease” where your real need is to acquire the residue of a statutory right of occupancy.
This counsel-grade guide explains—in practical, bank-ready language—the core distinctions, use-cases, drafting essentials, consent/stamping/registration pathways, and red-flag traps. If you are buying, selling, investing, lending, or developing, use this as your operational playbook.
Doctrine: Never pay for land—pay for the correct estate, correctly perfected.
Call to Action: If you need us to audit your current documents, restructure your transaction (assignment vs. lease), or perfect a deal to bank standard, contact Chaman Law Firm (details at the end). We engineer files that lenders and courts respect.
Part I — Plain-English Definitions
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Deed of Assignment
Transfers (assigns) to the buyer the assignor’s entire interest in the property—i.e., the residue of the statutory right of occupancy or other registrable estate. It is a sale of the proprietary interest itself (not mere possession). Typically perpetual in effect, subject to statutory tenure and conditions in the root title. -
Deed of Lease
Grants the right to exclusive possession for a term certain (e.g., 5, 10, 20, 99 years) in exchange for rent/premium. The freehold/statutory root remains with the lessor. It is time-bound; at expiry, possession reverts to the lessor unless renewed. -
Deed of Sublease
A lease granted by a lessee (not the freeholder) to a sublessee out of the lessee’s term. It cannot exceed or outlast the head-lease; it is derivative and subject to the covenants in the superior lease. Frequently requires the lessor’s consent (as a matter of contract) and, where the head interest is a statutory right of occupancy, Governor’s Consent to the sublease as a registrable instrument.
Part II — The Legal Estate You Actually Get
| Feature | Deed of Assignment | Deed of Lease | Deed of Sublease |
|---|---|---|---|
| Nature of estate | Transfer of the assignor’s whole interest (residue of title) | Term of years certain (exclusive possession) | Carved-out term from a head-lease |
| Ownership vs possession | Ownership-level proprietary interest | Possession for a fixed term | Possession for a fixed sub-term |
| Reversion | No reversion to seller | Reversion to lessor at term end | Reversion to lessee, then to lessor under head-lease |
| Typical use | Purchases, development, finance/security, resale | Build-to-rent, commercial letting, ground leases | Retail/office sub-letting, flexible occupancy solutions |
| Price logic | Capital value (purchase price) | Rent + premium (if any) | Rent (often market-driven; premium rare) |
Part III — When Each Instrument Is Commercially Sensible
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Use a Deed of Assignment when:
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You want marketable ownership (to develop, refinance, or resell).
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You are buying an already titled plot/house from a C of O holder or assignee.
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You need bank collateral (lenders prefer consented, registered assignments).
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Use a Deed of Lease when:
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You want long-term control but not the capital outlay of a full purchase.
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You’re structuring build-to-rent or ground leases for income projects.
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Your counterparty cannot (or will not) sell the reversion but will grant a term.
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Use a Deed of Sublease when:
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You hold a lease and wish to monetize surplus space or re-tenant a site.
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The estate strategy requires flexibility under a head-lease (e.g., malls, office floors).
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You’re bridging occupancy while a larger transaction (assignment or head-lease renewal) is engineered.
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Part IV — Consents, Stamping & Registration (Perfection Map)
Golden rule: In Lagos and similar jurisdictions, the perfection triad is
(1) Stamp Duties → (2) Governor’s Consent (where applicable) → (3) Registration.
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Deed of Assignment:
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Consent: Governor’s Consent required (derivative transfer of a statutory right).
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Stamp: Ad valorem on consideration.
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Register: At Lagos State Lands Registry; obtain registration particulars.
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Deed of Lease:
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Consent: Where the reversion is a statutory right, practice is to obtain Governor’s Consent to the lease (registrable interest).
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Stamp: Duty on rent/premium and term.
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Register: Yes—especially for long terms; registration secures priority and searchability.
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Deed of Sublease:
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Consent: Often two layers—(i) lessor’s contractual consent under the head-lease; and (ii) Governor’s Consent (derivative, registrable instrument).
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Stamp: On rent/premium.
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Register: Yes; otherwise, priority and enforceability suffer.
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Bankability test: If a prudent bank would not lend on the file today, you are not done today.
Part V — Core Drafting Architecture (What Must Be Inside)
A. Deed of Assignment — essentials
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Recitals: Root of title (C of O/Allocation/Excision) and clean chain down to assignor.
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Operative words: “assign, transfer and convey the entire estate and interest…”
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Consideration: Amount; escrow acknowledgment if used.
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Covenants for title: Right to assign; freedom from undisclosed encumbrances; further assurances.
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Habendum: “To hold unto the Assignee for the residue of the term…”
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Schedule/Plan: Registered survey (hard + soft CAD).
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Execution: Proper individual/corporate blocks; witnesses; seals.
B. Deed of Lease — essentials
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Term & commencement; rent, review mechanics, and premium (if any).
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User clause (permitted use); alienation (assignment/underletting) restrictions.
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Repairs & insurance; service charge regime (if multi-let/estate).
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Quiet enjoyment; lessor’s covenants (possession, title).
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Re-entry/termination; forfeiture and relief mechanics.
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Yielding up and reinstatement; options (renewal, expansion).
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Schedules: Plans, car parks, shared areas, “fit-out” obligations.
C. Deed of Sublease — essentials
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Compliance with head-lease; sublease subject to and with the benefit of superior covenants.
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Term within head-lease term; rent and service charge alignment.
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Required consents (landlord/head-lessor) and direct agreements where needed.
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Step-in and assignment/underletting provisions consistent with head-lease.
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Break rights harmonized with head-lease events.
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Disclosure: Deliver certified copy of head-lease to sublessee.
Part VI — Risk & Remedies Matrix
| Risk | Assignment | Lease | Sublease | Counsel’s Mitigation |
|---|---|---|---|---|
| No Governor’s Consent | Chain defective | Priority/validity risk | Double-consent exposure | Make Consent a Condition Precedent; escrow with long-stop |
| OSG/Survey conflicts (ROW, setback, overlap) | Title may be unusable | Use restriction; works halted | Head-lease breach risk | Pre-chart soft coordinates; walk if not clean |
| Undisclosed encumbrance | Buyer takes subject to charge | Lessee exposed to enforcement | Sublessee loses possession | CTC search; discharge filing as CP; indemnities + retention |
| Head-lease breach | — | Forfeiture risk | Automatic termination of sublease | Review head-lease; require landlord’s consent; direct agreements |
| Rent/service-charge shock | — | Cash-flow strain | Pass-through risk | Cap/Index properly; audit rights; service-charge schedules |
| Name/description mismatch | Registry queries | Registry queries | Registry queries | Name hygiene across all instruments; one data room |
Part VII — Commercial Scenarios (What to Choose & Why)
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You’re buying a plot/house to hold or develop: Assignment (ownership-level control; best for finance and resale).
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You want long-term control of a site near a corridor (e.g., infrastructure) but not outright purchase: Long Lease (ground lease).
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You have excess retail/office floorspace under a head-lease: Sublease (monetized space; preserve head obligations).
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You’re a developer selling units in a built-to-rent scheme: Head-lease from landowner + underleases to tenants/investors, carefully crafted to protect the capital stack.
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You’re bridging occupancy pending approvals or funding: Short lease/sublease with clear break rights, while an eventual assignment is engineered.
Part VIII — Perfection Workflow (Practical, Lagos-Ready)
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Due diligence: Lands Registry search + CTCs; OSG charting with soft coordinates; court/CAC checks.
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Contract architecture: Escrow, Conditions Precedent (Consent, OSG clean, discharge, CTCs, originals), long-stop, retention.
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Drafting: Correct instrument (assignment/lease/sublease), with schedules and plan.
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Stamp Duties: Within statutory window (plan ≤30 days from execution).
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Governor’s Consent: File clean pack; track queries; maintain name/description hygiene.
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Registration: Obtain registration particulars; order CTCs for the finance file.
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Aftercare: Insurance, estate onboarding, tax diaries, digital vault of notarized scans; originals in fire-safe.
Part IX — Clauses You Can Adapt (Illustrative)
Consent as Condition Precedent (for any instrument):
“Completion is conditional upon issuance of Governor’s Consent to the [Deed of Assignment/Lease/Sublease] in favour of [Buyer/Lessee/Sublessee] and delivery of evidence of stamping and registration particulars from the Lagos State Lands Registry.”
OSG & Planning Cleanliness:
“Completion is conditional upon an OSG charting report confirming the Property lies outside acquisition/committed areas, ROW/pipelines/coastal or drainage setbacks and without overlap; and upon documentary evidence of applicable planning/building approvals.”
Head-Lease Compliance (Sublease):
“This Sublease is subject to and with the benefit of the covenants and conditions of the Head-Lease, a certified copy whereof is annexed hereto; the Sublessee shall not do or omit any act which would put the Lessee in breach of the Head-Lease.”
Retention/Holdback:
“₦… (or …%) of the price/premium shall be retained in escrow until evidence of Consent endorsement and registration particulars is delivered and (where applicable) discharge of any registered charge is filed.”
Part X — One-Page Checklists
A. Assignment buyer’s checklist
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Root + full chain (CTCs); prior Consents present
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Survey (hard + soft); OSG report clean
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Escrowed contract with CPs (Consent, OSG, discharge, originals) + long-stop
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Deed perfection-ready; Stamp → Consent → Register diarized
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CTCs ordered; insurance/estate onboarding; digital vault
B. Lease/Head-Lease checklist
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Title & landlord’s capacity verified; any charges cleared
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Term, rent, review, use, alterations, alienation, repair/insurance settled
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Service-charge schedule + audit/oversight rights
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Consent (Governor/landlord) mapped; Stamp → Register
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Works/deliverables schedules signed and annexed
C. Sublease checklist
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Head-lease reviewed and annexed; landlord consent obtained
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Term/scope within head-lease term; aligned alienation & user
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Direct agreements where prudent; remedies mapped
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Governor’s Consent (if required); Stamp → Register
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Pass-throughs (service charge, insurance) defined and capped
FAQs (Concise Counsel)
Q: Can I convert a lease into an assignment later?
A: Only by separate assignment of the reversion or restructuring; a lease itself does not morph into ownership.
Q: Does registration cure lack of Governor’s Consent?
A: No. You need Consent (where applicable) and registration, both duly stamped.
Q: Can a sublease outlast the head-lease?
A: No. It is derivative; when the head-lease ends, the sublease typically falls with it.
Q: Which is best for financing—assignment or lease?
A: Consented, registered assignments are generally superior collateral. Long leases can work if consented, registered, and lender-friendly.
Conclusion
The instrument you choose dictates your power over the land, your ability to finance, and your exit. Assignment buys the estate; Lease buys time and control; Sublease buys a slice of someone else’s time—each must be perfectly engineered with Consent → Stamp → Register, OSG-clean boundaries, and disciplined contracting. That is how institutions transact—and how you protect capital.
Call to Action
Unsure whether your deal needs an Assignment, a Lease, or a Sublease—and how to perfect it?
Engage Chaman Law Firm. We will audit, draft, obtain Governor’s Consent, stamp, register, and hand you a finance-grade completion pack ready for lenders and resale.

